Corrosion of iron

What do you understand by corrosion of iron?

Corrosion of iron is also called rusted iron.Rusted iron is formed when iron is converted to iron oxide.It is formed when iron is in contact with water and oxygen.Rusted iron can also be formed because of the reaction of iron and chlorine in an environment deprived of oxygen.

Examples of rusted iron which are also called iron oxides are given as follows:
Hydrated iron(iii) oxide Fe₂O₃·nH₂O and iron (iii) oxide-hydroxide Fe(OH)₃).


In order to prevent corrosion of iron, galvanization method is used, i.e, layering the surface of iron with zinc.
Several other methods are also available for prevention of corrosion.